B on center of 2 infinite wires with semi - circular end

[Pushoam]

Homework Statement

Homework Equations

The Attempt at a Solution

Magnetic field due to both semi - infinite straight wires on P = Magnetic field due to infinite straight wire on P = $\frac { \mu_0 I } { 2 \pi a } = 2 * 10 ^{-5} ~wb/m^2$

Magnetic field due to semi – circular wire on P = $\frac { \mu_0 I } { 4a} = 3.14 * 10 ^{-5} ~wb/m^2$So, total magnetic field magnitude on P is = 0.514 gauss.

Is this correct?

 

[TSny]

I concur with @Delta² . You work looks correct.

 

[Pushoam]

Thanks.